What this man said. On the proper surface, the g9x feels more precise than my g400. Hard to put my finger on why, but it does..

The laser just has twice the frames per second / megapixel coverage, so the laser feels more fluid. As for accuracy, the g9x shape is vastly superior to the god awful g400 shape might be another factor.

The switches of the standard Kinzu v2 are for sure louder and for sure at least as hard as the AM ones. Get the Kinzu v2 Pro Edition. It uses the standard Omron switches. Of course it is surprising considering the price that a cheaped out version even exists. Why not simply make one version with bearable switches and Teflon feet? Hello? Mouse feet that glide? Is that considered luxury? Why make a cheap version which behaves like a low quality toy? Ugly.

Later on they finally gave the Xana Teflon feet, don't know about the standard Kinzu. I wonder how many mouse pads have been damaged by their plastic mouse feet.Edited by Jalal - 5/15/13 at 8:55am

some reviews about g9x. Obviously depends on your need, I'd suggest trying them out before you buy them for your comfort. I have a small hand using claw grip and 800-1000dpi setting. The wide mouse shell is very comfortable to me.